I was reluctant to make the jump to a stand alone phono stage and am glad I did. In my case it was an Electrocompaniet ECP-1. That is well within your budget even with the extra set of good quality interconnects you will need. Good luck finding an Electrocompaniet dealer though.
Luxman also makes a phono stage within your budget, check it out at online retailer *usic *irect.
Luxman also makes a phono stage within your budget, check it out at online retailer *usic *irect.